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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…The Norwegian Viva sails a 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos itinerary with Norwegian Cruise Line (NCL), departing Istanbul, Turkey on September 7, 2026. It's a classic Mediterranean cruise. Travelers sailing in September can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Istanbul, Turkey, Kusadasi, Turkey, Santorini, Greece, with 7 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.
Istanbul, Turkey is a scheduled port of call on day 1 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: partially cloudy with highs near 79°F.
Kusadasi, Turkey is a scheduled port of call on day 2 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: clear with highs near 90°F.
Santorini, Greece is a scheduled port of call on day 3 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: clear with highs near 76°F.
Mykonos, Greece is a scheduled port of call on day 4 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: clear with highs near 75°F.
Piraeus, Greece is a scheduled port of call on day 5 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: clear with highs near 89°F.
Katakolon, Greece is a scheduled port of call on day 6 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: partially cloudy with highs near 81°F.
La Valletta, Malta is a scheduled port of call on day 7 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: partially cloudy with highs near 79°F.
Catania, Sicily is a scheduled port of call on day 8 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: partially cloudy with highs near 81°F.
Salerno, Italy is a scheduled port of call on day 9 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: partially cloudy with highs near 81°F.
Civitavecchia, Italy is a scheduled port of call on day 10 of the 9-night Greek Isles from Istanbul to Rome: Santorini, Athens & Mykonos cruise on Norwegian Viva. Expected weather: partially cloudy with highs near 74°F.
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Most PopularIstanbul Private Transfer - IST Airport, Cruise Ports and Hotels
From $36
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Budget PickSmall-Group Topkapi Palace and Harem Tour with Tickets
From $55
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Most PopularPRIVATE EPHESUS TOUR FOR CRUISERS: On-time Return and Skip-Line
From $29
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Budget PickTop-Rated Ephesus and House of Virgin Mary Tour for Cruisers
From $15
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Most PopularSantorini Must-See Highlights Private Tour
From $80
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Budget PickSKIP CABLE CAR® Santorini for Cruise Ships with Boat Transfers
From $57
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Most PopularMykonos Small Group Tour for Cruise Passengers — Port Pickup
From $122
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Budget PickFor Cruise Ships: Beach Escape and Free Time in Mykonos Town
From $28
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Most PopularCatania Shore Excursion: Catania to Taormina and Castelmola
From $154
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Budget PickCatania Sicilian Street Food Tour: Small Group by Do Eat Better
From $54
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Most PopularPompeii & Amalfi Coast: Shore Excursion from Salerno
From $97
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Budget PickPompeii and Herculaneum Small-Group with an Expert Archaeologist
From $76
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Istanbul, Turkey
Most PopularIstanbul Private Transfer - IST Airport, Cruise Ports and Hotels
From $36
Book NowBudget PickSmall-Group Topkapi Palace and Harem Tour with Tickets
From $55
Book NowKusadasi, Turkey
Most PopularPRIVATE EPHESUS TOUR FOR CRUISERS: On-time Return and Skip-Line
From $29
Book NowBudget PickTop-Rated Ephesus and House of Virgin Mary Tour for Cruisers
From $15
Book NowSantorini, Greece
Most PopularSantorini Must-See Highlights Private Tour
From $80
Book NowBudget PickSKIP CABLE CAR® Santorini for Cruise Ships with Boat Transfers
From $57
Book NowMykonos, Greece
Most PopularMykonos Small Group Tour for Cruise Passengers — Port Pickup
From $122
Book NowBudget PickFor Cruise Ships: Beach Escape and Free Time in Mykonos Town
From $28
Book NowCatania, Sicily
Most PopularCatania Shore Excursion: Catania to Taormina and Castelmola
From $154
Book NowBudget PickCatania Sicilian Street Food Tour: Small Group by Do Eat Better
From $54
Book NowSalerno, Italy
Most PopularPompeii & Amalfi Coast: Shore Excursion from Salerno
From $97
Book NowBudget PickPompeii and Herculaneum Small-Group with an Expert Archaeologist
From $76
Book NowPowered by Viator/Tripadvisor. Booking through our links may earn us a commission keeping this site free at no cost to you.